Application of memory alloy sternum fixator to prevent sternum split after cardiac valve
replacement operation(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2018年第9期
- Page:
- 1104-1107
- Research Field:
- 生物材料与力学
- Publishing date:
Info
- Title:
- Application of memory alloy sternum fixator to prevent sternum split after cardiac valve
replacement operation
- Author(s):
- SU Yongchao; TIAN Zuochun; LIN Qing; LI Cai; HUANG Yongshan
- Department of Cardiothoracic Surgery, the Third People’s Hospital of Hainan Province, Sanya 572000, China
- Keywords:
- memory alloy; sternum fixator; cardiac valve replacement operation; median sternal incision; sternum split
- PACS:
- R619
- DOI:
- 10.3969/j.issn.1005-202X.2018.09.020
- Abstract:
- Abstract: Objective To study the application of memory alloy sternum fixator (MASF) on the prevention of sternum split after
cardiac valve replacement (CVR) through a midline sternotomy. Methods A total of 116 patients who were admitted to the Third
People’s Hospital of Hainan Province from February 2014 to February 2018 for CVR through a midline sternotomy were divided
in two groups. Group A contained 60 patients who underwent CVR operation using the combination of MASF and steel wire,
while group B included 56 cases solely using steel wire for fixation. The time of operation, pain score after operation (numeric
rating scales), the incidence of postoperative pulmonary infection, ventilator-assisted breathing time after operation and the
incidence of sternum split after operation were compared between two groups. Results No sternum split was found in group A,
while the incidence of sternum split was 8.93% in group B (5 cases), with significant differences (P=0.02). No significant
differences were found in the time of operation between the two groups (P=0.439). Pain score after operation, the incidence of
postoperative pulmonary infection and ventilator-assisted breathing time after operation in group A were significantly higher than
those in group B, with statistical differences (P<0.05). Conclusion MASF decreases the incidence of sternum split after CVR
operation. The combination of MASF and steel wire after CVR through a midline sternotomy is a reliable method for sternum
internal fixation.
Last Update: 2018-09-28